.nav {
  height: 5rem;
  display: flex;
  align-items: center;
  justify-content: space-around;
  background-color: #F8F8F8;
  border-top: 1px solid #ECECEC;
}
.nav a{
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  align-items: center;
  text-decoration: none;
  font-size: 1.2rem;
  flex: 1;
}
.nav i{
  font-size: 2.4rem;
}
.nav .item {
  color: #666;
}
.nav .active {
  color: #FF5000;
}
